2004 14th International Crimean Conference "Microwave and Telecommunication Technology", Sevastopol, Ukraine. IEEE: pp. 737-738; ISBN 978-966-7968-69-4
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Szabo I, Alekseev SI, Acs G, Radzievsky AA, Logani MK, Makar VR, Gordiienko OR, Ziskin MC
2004,
Doria A, Gallerano GP, Giovenale E, Messina G, Lai A, Ramundo-Orlando A, Sposato V, D'Arienzo M, Perrotta A, Romano M, Scarfi MR, Spassovsky I, Zeni O